Transaction processing deals with the handling of information individually or as a group. Each transaction succeeds or fails as a group (one portion of a transaction cannot work while the other fails).
It is crucial for business owners to understand this because it is used whenever a transaction occurs. For example, if a customer pays buy $150 worth of goods and pays with his credit card, this transaction will involve two processes. The first will be debiting the customer’s account and the second, crediting the merchant’s account. If the system is able to get the money from the customer but cannot pay it to the merchant, the entire transaction will be stopped and cancelled.